I've been wondering about writing a tale series revolving around an MTF/department/similar Foundation group that's responsible for shipping the skips around the world. Every time a new facility is built, or a particular SCP proves dangerous and has to be moved somewhere more secure, these guys are the ones to do it.
Of course, containment procedures are at their most vulnerable while SCPs are being transported, so they don't always have an easy time of it. If an SCP were to break out, or a hostile GOI were to ambush them on the road, well, there would be a plot there…

This actually sounds interesting. They would probably be official members of the foundation, who know who their working for. Basic small arms to defend against robbery, maybe an RPG or two for delivering full SCPs. Wheels might be reinforced against those Spike Strips, and more armor around the cargo area, which might have a fancy electronic lock.

Probably level 2 clearance, since they might have to know the containment procedures for the SCP they are dealing with. Not standard foundation agents, but they might have more specialized training in driving skills. Certainly have their own little sub culture and habits separate from other researchers.

For attacks by other GOIs, here's what I've got.

MC and D might pay someone to take an SCP during transportation, just keep driving past the Site to a hidden warehouse.
CI and Serpents hand are very likely to launch attacks at this time, although the SH might have it a bit tougher since they can't use their signature Ways.